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1<?php
2
3declare(strict_types=1);
4
5namespace App\Modules\User\Presentation\Web;
6
7use App\Modules\User\Application\Command\LoginCommand;
8use App\Modules\User\Application\Command\LoginHandler;
9use Psr\Http\Message\ResponseFactoryInterface;
10use Psr\Http\Message\ResponseInterface;
11use Psr\Http\Message\ServerRequestInterface;
12use Yiisoft\User\CurrentUser;
13use Twig\Environment as TwigEnvironment;
14
15/**
16 * Authentication Controller for Guest Zone.
17 *
18 * Handles login form rendering, credential verification, and user logout.
19 *
20 * @package App\Modules\User\Presentation\Web
21 */
22final readonly class AuthController
23{
24    /**
25     * AuthController constructor.
26     *
27     * @param ResponseFactoryInterface $responseFactory PSR-7 Response factory.
28     * @param TwigEnvironment $twig Twig template environment.
29     * @param LoginHandler $loginHandler Login command handler.
30     * @param CurrentUser $currentUser Yii3 CurrentUser service instance.
31     */
32    public function __construct(
33        private ResponseFactoryInterface $responseFactory,
34        private TwigEnvironment $twig,
35        private LoginHandler $loginHandler,
36        private CurrentUser $currentUser
37    ) {
38    }
39
40    /**
41     * Renders login form for guest users.
42     *
43     * @return ResponseInterface PSR-7 HTML response containing login form.
44     */
45    public function loginForm(): ResponseInterface
46    {
47        $html = $this->twig->render('auth/login.twig', [
48            'error' => null,
49        ]);
50
51        $response = $this->responseFactory->createResponse(200);
52        $response->getBody()->write($html);
53        return $response->withHeader('Content-Type', 'text/html; charset=utf-8');
54    }
55
56    /**
57     * Handles submitted login credentials.
58     *
59     * @param ServerRequestInterface $request PSR-7 Server request.
60     * @return ResponseInterface Redirect response on success or HTML response with error.
61     */
62    public function loginSubmit(ServerRequestInterface $request): ResponseInterface
63    {
64        /** @var array<string, mixed> $parsedBody */
65        $parsedBody = (array)($request->getParsedBody() ?? []);
66        $login = (string)($parsedBody['login'] ?? '');
67        $password = (string)($parsedBody['password'] ?? '');
68
69        $command = new LoginCommand($login, $password);
70        $user = $this->loginHandler->handle($command);
71
72        if ($user === null) {
73            $html = $this->twig->render('auth/login.twig', [
74                'error' => 'Invalid login or password.',
75            ]);
76            $response = $this->responseFactory->createResponse(400);
77            $response->getBody()->write($html);
78            return $response->withHeader('Content-Type', 'text/html; charset=utf-8');
79        }
80
81        $this->currentUser->login(new Identity($user->getId() ?? 0));
82
83        $response = $this->responseFactory->createResponse(302);
84        return $response->withHeader('Location', '/dashboard');
85    }
86
87    /**
88     * Logs out current user and redirects to login page.
89     *
90     * @return ResponseInterface Redirect response to /login.
91     */
92    public function logout(): ResponseInterface
93    {
94        $this->currentUser->logout();
95
96        $response = $this->responseFactory->createResponse(302);
97        return $response->withHeader('Location', '/login');
98    }
99}